酒精发酵设备 ④传热总系数K值 17600 =1.12m/s 2×3600×0.785×(0.053)2×1000 0.8 ∴K,=4.186A 1+1.77 145×10 R K==1 0.00351 =1932 14500270018816750 ⑤冷却面积 Q 3.68×10 =265(m K△T1932×7.2④传热总系数K值 1.12(m/s) 2 3600 0.785 (0.053) 1000 17600 2 =     w = ( ) 4 0.7 0.8 2 4.186 1 1.77  =1.4510       = + R D D K A  1932 16750 1 188 0.0035 2700 1 14500 1 1 = + + +  K = ⑤ 冷却面积 26.5(m ) 1932 7.2 3.68 10 2 5 =   =  = K Tm Q A 酒精发酵设备